Is the STORZ Firefighter Connector with Flange, Stainless Steel compatible with other Storz couplings and standard flange sizes?

Yes. The STORZ Firefighter Connector with Flange, Stainless Steel is compatible with other Storz couplings that share the same hook spacing and coupling profile—its symmetrical Storz design allows identical elements to mate quickly and securely. Additionally, because it is supplied with a flange connection, it is compatible with standard flange sizes when the mating flange matches the same bolt pattern and nominal size. For reliable interoperability, ensure the other Storz coupling has the same coupling size/design and the flange matches the standard bolt circle and diameter for the intended pressure rating.

Can the STORZ Firefighter Connector with Flange, Stainless Steel be used with non-stainless steel fittings or adaptors without compromising the seal and corrosion resistance?

Short answer: Generally not recommended without caution. Reasoning: - The STORZ Firefighter Connector with Flange, Stainless Steel is designed as an integrated stainless-steel system with a Viton seal. Stainless steel provides superior corrosion resistance and maintains a stable, smooth sealing surface. - Using non-stainless fittings or adaptors can introduce galvanic corrosion at the junction (steel vs. dissimilar metals), surface roughness differences, and differential thermal expansion — all of which can compromise the mechanical fit and the effectiveness of the Viton seal over time. - Chemically aggressive environments or cyclic loading/temperature changes increase the risk that a non-stainless mate will accelerate corrosion or deform, creating leaks or contaminating the media. When it can be done safely: - If the adaptor is made from a compatible material (e.g., high-quality brass or coated carbon steel specified as compatible by the manufacturer) and has a precisely machined, smooth sealing face, and if corrosion protection (isolating gaskets, protective coatings, or dielectric fittings) is applied, the seal and corrosion resistance can be preserved. - Confirm compatibility for your specific fluid, pressure (up to 16 bar), temperature range, and service conditions. Manufacturer guidance or material compatibility data should be consulted. Recommendation: Use stainless-steel fittings/adaptors whenever possible. If you must use non-stainless components, consult the STORZ connector manufacturer or a corrosion/materials specialist to verify compatibility and mitigation measures.

A STORZ fire coupling with a flange connection, steel stainless

All products, Symmetrical claw couplings/

Additional information

Material	SS – stainless steel

A STORZ coupling with a flange connection intended for installation transfer for liquid and bulk substances. used in firefighting, systems irrigation, industry chemical, food, agriculture etc. characterized by high, unobstructed diameter bore. O symmetrical construction parts connection, thanks to this in straight way combines je of each other. connect can element o the same spacing lugs. Material: steel stainless. Working pressure: 16 bar. Gasket: Viton.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
ST-36-031025-43	Coupling STORZ 31 mm with a flange DN 25, SS	-	16	In stock	Enquiry
ST-36-066050-43	Coupling STORZ 66 mm with a flange DN 50, SS	-	16	In stock	Enquiry
ST-36-081065-43	Coupling STORZ 81 mm with a flange DN 65, SS	-	16	In stock	Enquiry
ST-36-089080-43	Coupling STORZ 89 mm with a flange DN 80, SS	-	16	In stock	Enquiry
ST-36-133100-43	Coupling STORZ 133 mm with a flange DN 100, SS	-	16	In stock	Enquiry
ST-36-148125-43	Coupling STORZ 148 mm with a flange DN 125, SS	-	16	In stock	Enquiry
ST-36-160150-43	Coupling STORZ 160 mm with a flange DN 150, SS	-	16	In stock	Enquiry

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A STORZ coupling with a flange connection intended for installation transfer for liquid and bulk substances. used in firefighting, systems irrigation, industry chemical, food, agriculture etc. characterized by high, unobstructed diameter bore. O symmetrical construction parts connection, thanks to this in straight way combines je of each other. connect can element o the same spacing lugs. Material: steel stainless. Working pressure: 16 bar. Gasket: Viton.